Extech Sound level meter SL130W 30 - 130 dB 315 Hz - 8000 Hz
Ideal for monitoring of noise levels in buildings, offices, production plants, etc. The SL-130 has an adjustable alarm function, so it can adhere to the legal level checks and if necessary protective measures are taken. The SL-130 is also ideally suited as a control instrument at lectures or performances. When sound level of the lecture is optimal, the LEDâs are green, if you go over or under the desired sound level then they either light up or blink red and signal to the lecturer to adjust the sound level. The alarm is signalled optically over super bright LEDâs which are visible at a distance of 30 m or the alarm can be sent over an analogue output.